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Stripping ratio mining Britannica

2021-6-4  In coal mining: Choosing a mining method calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal. Stripping ratios can also consider the selling price of coal, and a certain minimum profit can be added to the total cost of producing and Read More

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stripping ratio calculation in mining

May 09, 2020 The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of waste material that must be moved in order to reach a ...

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What Is a Stripping Ratio? (with picture)

2021-2-21  The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of waste material that must be moved in order to reach a certain ratio of ore.

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Stripping Ratios: What are They and Why are They

2018-10-30  Calculating stripping ratios At their most basic, strip ratios can be calculated by dividing overburden thickness by ore thickness. For example, an overburden thickness of

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Coal Ratio - an overview ScienceDirect Topics

With increasing overburden to coal ratio, the cost of removal of overburden (known as stripping cost) adds considerably to the cost of mining the coal beyond economic limit. To develop a mine, the break even stripping ratio (at the surface of the final pit) must be established.

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stripping ratio calculation in mining - Sians Karaoke

The calculation of coal reserves volume is using two values of stripping ratio which is SR 4 and SR 5 The calculation area of coal reserves volume is divided by out of boundary from dominance mining of PT Multi Prima Universal From calculation result get total calculation of coal reserves volume with SR 4 is equal to 31 046 626 4 tons with overburden volume is 14 077 040 3 BCM and

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Whats the average stripping ratio of open pit mines

A high grade orebody can support a high stripping ratio. A low grade ore body cannot support a high stripping ratio. Thus you may have a range of stripping ratios from 1:1 to 1:15 or even more.

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Coal mining methodsCoal mining methods

2013-10-8  Stripping RatioStripping Ratio = Volume of Material (Volume of Material (bcmbcm)/)/ Extraction of Coal (ROMExtraction of Coal (ROM-tontonton ))*) 4 Strip Mining

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(PDF) Stripping Ratios, Pit Limits Cutoff Grade ...

For open pit mining the costs are $0.40/ton ore and a stripping cost of $0.50/ton of waste. SR = (3.00 –0.40)/0.50 = 5.2 tons of waste/ ton of ore i.e. while the stripping ratio is less than 5.2 it is most economical to mine the deposit by open pit.

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(PDF) Surface Mine Design - ResearchGate

It should be noted here that a stripping ratio of 2 to1 means t hat there is twice as much waste rock mined as mineral (ore, coal, etc.). Two types of methods may be used in surface mining ...

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stripping ratio calculation in mining

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock.

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influence of striping ratio on open cast coal mining

Coordinating Mining Optimization Research on Mining ... - EJGE. districts and improve coal resource recovery ratio, the relevant issues of coal resource ... while each coal field is divided into several mine fields to reduce initial stripping ratio and ... during the transition period

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effect of stripping ratio in coal mining Solution for ...

Average stripping ratio – operations 9.60 7.40 10.20 7.24 Pacific Coal Resources Ltd. is a Canadian-based mining company focused on coal, coking coal Coal mining – Wikipedia, the free encyclopedia. Strip mining exposes the coal by removing the reaches a predetermined stripping ratio (tons of overburden/tons of coal

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Lecture 4 Calculating Stripping Ratios for Area Strip

2013-9-18  The Coal Area Strip Mine Formula Strip Ratio = OB Thickness (in ft) * 11.11/ Coal thickness in inches Assumes coal is 80 lbs/ft^3 (good for bituminous) Area Strip Mine Geometry Geologic Stripping Ratio no accounting for rehandle or less than 100% coal recovery

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Coal mining methodsCoal mining methods

2013-10-8  Stripping RatioStripping Ratio= Volume of Material (Volume of Material (bcmbcm)/)/Extraction of Coal (ROMExtraction of Coal (ROM-tontonton))*) 4

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(PDF) Stripping Ratios, Pit Limits Cutoff Grade ...

For open pit mining the costs are $0.40/ton ore and a stripping cost of $0.50/ton of waste. SR = (3.00 –0.40)/0.50 = 5.2 tons of waste/ ton of ore i.e. while the stripping ratio is less than 5.2 it is most economical to mine the deposit by open pit.

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mining engineering: STRIPPING RATIO (S)

2010-6-6  SR measures the amount of waste that needs to be removed to get an amount of ore, just as we mine it. Note the “amount”! b. This will differ depending on time span under consideration. * Initial studies (feasibility) – overall stripping ratio. * Current month – incremental stripping ratio.

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Coal Surface Mining - Materials101

2021-3-15  This methods are successively used till the stripping ratio is acceptable and is economical. Open Pit Mining Open Pit Mining (Courtesy :Open Cast Mining Advantages (911metallurgist)) In this method of surface mining, they make several layers of cuts and form benches of strata and coal

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The boundary stripping ratio in ore mining

Mosinets, V.N., Khodinov, A.S. The boundary stripping ratio in ore mining. Soviet Mining Science 9, 166–168 (1973). https://doi.org/10.1007/BF02506182. Download citation. Received: 22 September 1971. Published: 01 March 1973. Issue Date: March 1973. DOI: https://doi.org/10.1007/BF02506182

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(PDF) Surface Mine Design - ResearchGate

It should be noted here that a stripping ratio of 2 to1 means t hat there is twice as much waste rock mined as mineral (ore, coal, etc.). Two types of methods may be used in surface mining ...

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stripping ratio calculation in mining

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. formular for calculating strip ratio in mining . formular for calculating strip ratio in mining calculate cost of

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influence of striping ratio on open cast coal mining

Khanyisa: A short-life, open cast thermal coal mine currently supplying Eskom with an off-take.... estimated Stripping Ratio is c.1.0x in the western section of the...

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mining stripping ratio Prominer (Shanghai) Mining ...

Stripping ratio mining Britannica. In coal mining: Choosing a mining method calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal. Stripping ratios can also consider the selling price of coal, and a certain minimum profit can be added to the total cost ...

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effect of stripping ratio in coal mining Solution for ...

Average stripping ratio – operations 9.60 7.40 10.20 7.24 Pacific Coal Resources Ltd. is a Canadian-based mining company focused on coal, coking coal Coal mining – Wikipedia, the free encyclopedia. Strip mining exposes the coal by removing the reaches a predetermined stripping ratio (tons of overburden/tons of coal

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Coal mining methodsCoal mining methods

2013-10-8  Stripping RatioStripping Ratio = Volume of Material (Volume of Material (bcmbcm)/)/ Extraction of Coal (ROMExtraction of Coal (ROM-tontonton ))*) 4 Strip Mining

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Coal Surface Mining - Materials101

2021-3-15  This methods are successively used till the stripping ratio is acceptable and is economical. Open Pit Mining Open Pit Mining (Courtesy :Open Cast Mining Advantages (911metallurgist)) In this method of surface mining, they make several layers of cuts and form benches of strata and coal

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Determining Stripping Ratio - Basic Mining Techniques

2016-4-4  The maximum allowable Stripping Ratio (SR max) defines break even stripping ratio (BESR).This represents the highest possible units of waste that can be handled. If the SR exceeds the BESR then the operation will be uneconomical as the income generated by the ore is insufficient to offset the costs incurred in mining.

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The boundary stripping ratio in ore mining

Mosinets, V.N., Khodinov, A.S. The boundary stripping ratio in ore mining. Soviet Mining Science 9, 166–168 (1973). https://doi.org/10.1007/BF02506182. Download citation. Received: 22 September 1971. Published: 01 March 1973. Issue Date: March 1973. DOI: https://doi.org/10.1007/BF02506182

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Mining Coal Mines

The process is repeated in successive parallel cuts until the stripping ratio indicates that continued surface mining is uneconomical. Open-pit mining. In open-pit mining of the coal seam, several benches are established in both the overburden strata and the coal seam.

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(PDF) Surface Mine Design - ResearchGate

It should be noted here that a stripping ratio of 2 to1 means t hat there is twice as much waste rock mined as mineral (ore, coal, etc.). Two types of methods may be used in surface mining ...

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mining stripping ratio Prominer (Shanghai) Mining ...

The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its appli ion in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of waste

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influence of striping ratio on open cast coal mining

3) Shallow initial depth of the coal deposits (Stripping ratio 0.6 to 6): less. Read more. Surface Coal Mining Managment - ILO. The geological characteristics of surface coal mining which distinguish it from other ... large volumes of overburden over a large area (i.e., it has a high stripping ratio). ...

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What Is Stripping Ratio Coal Mining - hansestadt

what is stripping ratio coal mining crusher. Strip itself is easily understood in coal mining where you may have 20 metres of overburden before you expose a 2 metre coal seam. In this case it is a simple to just divide the length of the overburden by the length of the coal seam 202 101 strip ratio That is coal mining or strip mining. Learn More

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Determining Stripping Ratio - Basic Mining Techniques

2016-4-4  = 0.29 = 0.3 is the maximum allowable stripping ratio for break even This mean the income generated by one unit of 0.6% graded copper is able to offset the cost of 3 units waste at no profit (Income = Cost). Feel free to comment so that i can improve on the materials on this blog. Follow, like and share if you find this information useful.

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Ibreak even stripping ratio example for coal mining

break even ratio for australia coal mining. break even stripping ratio example for coal mining. what is stripping ratio coal mining, mining strip ratio sharesguru cubic feet or 1275 tons of coal for a ratio of 1875 if the total cost to mine was 300 per cubic yard, the coal sales price per ton would have to be 3750 to break mining strip ratio sharesguru australian shares forum.

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Strip Mining - an overview ScienceDirect Topics

In case of a deep-seated bedded deposit within permissible stripping ratio the overburden is removed by opening successive and progressive benches. It continues till sufficient area over the ore is exposed. The multiple seam mining is done by operating first pair of overburden and coal bed at a time and followed by second and third pairs in sequence.

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Mining Coal Mines

The process is repeated in successive parallel cuts until the stripping ratio indicates that continued surface mining is uneconomical. Open-pit mining. In open-pit mining of the coal seam, several benches are established in both the overburden strata and the coal seam.

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Mining Terms - kau

2008-11-12  Strip Mining: Bedded deposits –coal, phosphates . Quarry Mining: aggregates, marble, granite . ... Stripping Ratio: is the ratio of a unit of waste material removed per similar unit of ore material removed. Toe: is the base of a bank bench or a slope. Waste Dump: ...

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Coal Surface Mining - Materials101

2021-3-15  7.Loading the loose coal into conveners to transport to the plant. 8.Milling the loose material to improve its workability for extraction. 9.Reclaiming the mining land. Mining Methods. Surface mining can be broadly classified as . 1.Contour Strip Mining. 2.Area Strip Mining. 3.Open Pit Mining. 4.Auger Mining. Contour Strip Mining

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Key Financial Ratios to Analyze the Mining Industry

2020-5-8  This ratio is often referred to as the "acid test ratio" because it is considered such a strong fundamental indicator of a company's basic financial health or soundness.

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